WordPress – How to add an attribute to a plugin inline script tag

The script <script type="text/javascript" id='nf-front-end-js-extra'> is added via the wp_localize_script function, and you can’t add attributes using the script_loader_tag filter. This filter can only be used for scripts added via wp_enqueue_script.

In your case, you should use the wp_inline_script_attributes filter.

Try using the following code:

// NAV: Add attributes to inline script nf-front-end-js-extra 
function wpcoder_to_script ($attributes, $javascript) {
    
    if(isset($attributes['id']) && $attributes['id'] === 'nf-front-end-js-extra') {
        $attributes = array_merge(array( 'data-cookieconsent' => 'ignore' ), $attributes);
    } 
    
    return $attributes;
    
}

add_filter('wp_inline_script_attributes', 'wpcoder_to_script', 10, 2);

You can add this code to the functions.php file or use the free WP Coder plugin through the Global PHP page.